The Ultra High Definition LG55UH6550 4K UHD Smart LED TV w/ webOSTM 3.0 offers four times the resolution of Full HD televisions: 3,840 pixels wide by 2,160 lines high. UHD, also known as "4K," delivers exceptional clarity and detail for everything you watch, even on large screens, even when viewed up close. One of the secrets behind LG’s outstanding UHD performance is the specially designed 4K display panel with in-plane switching. IPS delivers accurate colors that remain consistent at wide viewing angles, with four times the resolution of Full HD. With IPS, any seat can be the best in the house. Color and contrast ratio are as important as pixel count, so select LG UHD TVs can process and display new High Dynamic Range content, which dramatically expands available contrast and colors. With HDR, images are now brighter and bolder, coming to life as never before.